<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
    <title>内容</title>
    <style>
        body {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
        }
        .welcome {
            text-align: center;
        }
        .welcome p {
            margin: 0;
        }
    </style>
</head>
<body>
    <div class="welcome">
        <p>欢迎<%= session.getAttribute("adminUsername")%> 管理员访问网站后台管理页面!</p>
    </div>
</body>
</html>
